Add more time for dataflow to stop

.github/workflows/ci.yml

@@ -348,7 +348,7 @@ jobs:
           dora build examples/python-dataflow/dataflow.yml --uv
           dora start examples/python-dataflow/dataflow.yml --name ci-python --detach --uv
           sleep 10
-          dora stop --name ci-python  --grace-duration 10s
+          dora stop --name ci-python  --grace-duration 30s
 
           # Run Python Dynamic Node Example
           echo "Running Python Node Dynamic Example"
@@ -356,13 +356,13 @@ jobs:
           dora start examples/python-dataflow/dataflow_dynamic.yml --name ci-python-dynamic --detach --uv
           uv run opencv-plot --name plot
           sleep 10
-          dora stop --name ci-python-dynamic  --grace-duration 10s
+          dora stop --name ci-python-dynamic  --grace-duration 30s
 
           # Run Python Operator Example
           echo "Running CI Operator Test"
           dora start examples/python-operator-dataflow/dataflow.yml --name ci-python-operator --detach --uv
           sleep 10
-          dora stop --name ci-python-operator  --grace-duration 10s
+          dora stop --name ci-python-operator  --grace-duration 30s
 
           dora destroy